package com.ruoyi.system.controller;

import java.util.List;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.ruoyi.common.log.annotation.Log;
import com.ruoyi.common.log.enums.BusinessType;
import com.ruoyi.common.security.annotation.RequiresPermissions;
import com.ruoyi.system.domain.GroupBuying;
import com.ruoyi.system.service.IGroupBuyingService;
import com.ruoyi.common.core.web.controller.BaseController;
import com.ruoyi.common.core.web.domain.AjaxResult;
import com.ruoyi.common.core.utils.poi.ExcelUtil;
import com.ruoyi.common.core.web.page.TableDataInfo;

/**
 * 优惠团购Controller
 * 
 * @author ruoyi
 * @date 2025-09-17
 */
@RestController
@RequestMapping("/system/buying")
public class GroupBuyingController extends BaseController
{
    @Autowired
    private IGroupBuyingService groupBuyingService;

    /**
     * 查询优惠团购列表
     */
    // @RequiresPermissions("system:buying:list")
    @GetMapping("/list")
    public TableDataInfo list(GroupBuying groupBuying)
    {
        startPage();
        List<GroupBuying> list = groupBuyingService.selectGroupBuyingList(groupBuying);
        return getDataTable(list);
    }

    /**
     * 查询优惠团购列表（公开接口，不需要权限）
     */
    @GetMapping("/public/list")
    public TableDataInfo publicList(GroupBuying groupBuying)
    {
        startPage();
        // 只查询未删除且未过期的团购
        groupBuying.setDeleted(0);
        List<GroupBuying> list = groupBuyingService.selectGroupBuyingList(groupBuying);
        return getDataTable(list);
    }

    /**
     * 导出优惠团购列表
     */
    @RequiresPermissions("system:buying:export")
    @Log(title = "优惠团购", businessType = BusinessType.EXPORT)
    @PostMapping("/export")
    public void export(HttpServletResponse response, GroupBuying groupBuying)
    {
        List<GroupBuying> list = groupBuyingService.selectGroupBuyingList(groupBuying);
        ExcelUtil<GroupBuying> util = new ExcelUtil<GroupBuying>(GroupBuying.class);
        util.exportExcel(response, list, "优惠团购数据");
    }

    /**
     * 获取优惠团购详细信息
     */
    @RequiresPermissions("system:buying:query")
    @GetMapping(value = "/{id}")
    public AjaxResult getInfo(@PathVariable("id") Integer id)
    {
        return success(groupBuyingService.selectGroupBuyingById(id));
    }

    /**
     * 获取优惠团购详细信息（公开接口，不需要权限）
     */
    @GetMapping(value = "/public/{id}")
    public AjaxResult publicGetInfo(@PathVariable("id") Integer id)
    {
        GroupBuying groupBuying = groupBuyingService.selectGroupBuyingById(id);
        if (groupBuying != null && groupBuying.getDeleted() == 0) {
            // 增加阅读量（点击次数）
            groupBuyingService.increaseReadCount(id);
            return success(groupBuying);
        } else {
            return error("团购信息不存在或已删除");
        }
    }

    /**
     * 新增优惠团购
     */
    @RequiresPermissions("system:buying:add")
    @Log(title = "优惠团购", businessType = BusinessType.INSERT)
    @PostMapping
    public AjaxResult add(@RequestBody GroupBuying groupBuying)
    {
        return toAjax(groupBuyingService.insertGroupBuying(groupBuying));
    }

    /**
     * 修改优惠团购
     */
    @RequiresPermissions("system:buying:edit")
    @Log(title = "优惠团购", businessType = BusinessType.UPDATE)
    @PutMapping
    public AjaxResult edit(@RequestBody GroupBuying groupBuying)
    {
        return toAjax(groupBuyingService.updateGroupBuying(groupBuying));
    }

    /**
     * 删除优惠团购
     */
    @RequiresPermissions("system:buying:remove")
    @Log(title = "优惠团购", businessType = BusinessType.DELETE)
	@DeleteMapping("/{ids}")
    public AjaxResult remove(@PathVariable Integer[] ids)
    {
        return toAjax(groupBuyingService.deleteGroupBuyingByIds(ids));
    }

    /**
     * 参与团购（公开接口，不需要权限）
     */
    @PostMapping("/public/{id}/participate")
    public AjaxResult participate(@PathVariable("id") Integer id, @RequestBody(required = false) ParticipateRequest request)
    {
        try {
            int result = groupBuyingService.participateGroupBuying(id, request);
            if (result > 0) {
                return success("参与成功");
            } else {
                return error("参与失败，团购可能已结束或不存在");
            }
        } catch (Exception e) {
            return error("参与失败：" + e.getMessage());
        }
    }

    /**
     * 增加参与人数（公开接口，不需要权限）
     */
    @PutMapping("/public/{id}/participants")
    public AjaxResult increaseParticipants(@PathVariable("id") Integer id)
    {
        try {
            int result = groupBuyingService.increaseParticipants(id);
            if (result > 0) {
                return success("参与人数增加成功");
            } else {
                return error("参与人数增加失败");
            }
        } catch (Exception e) {
            return error("参与人数增加失败：" + e.getMessage());
        }
    }

    /**
     * 参与团购请求对象
     */
    public static class ParticipateRequest {
        private String userName;
        private String phone;
        private String remark;

        public String getUserName() {
            return userName;
        }

        public void setUserName(String userName) {
            this.userName = userName;
        }

        public String getPhone() {
            return phone;
        }

        public void setPhone(String phone) {
            this.phone = phone;
        }

        public String getRemark() {
            return remark;
        }

        public void setRemark(String remark) {
            this.remark = remark;
        }
    }
}
